Question: At what point in time did Suez have a population of 408772?
Paraphrase: What year did the population of Suez reach 408772?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q134514 p:P1082 ?s . ?s ps:P1082 ?x filter(contains(?x , '408772.0')) . ?s pq:P585 ?value}